If the cables are not adjusted properly and get slack at one end or the other of travel, they will get kinked near the terminations and break there.
Fortunatly they are not THAT hard to replace if you follow the threading and adjustment instructions.
Mine came mis adjusted. The slide worked, in a fashion but would not have for long. Proper adjustments got it working smoothly and evenly. The cable mechanism is simple and reliable but does require adjustment to get the tensions correct. Its easy to see when they are not because of the exposed cables in both positions.
38ft 2008 Damon Daybreak 3575 (forward kitchen)on Ford 22,000lb chasis, 242" WB.